Some time ago, the Microdata predefined vocabularies were removed from
the main HTML5 spec into separate documents. Therefore, it seems there
is no more controversy over ISSUE-73, and we should close it by
amicable resolution.
If there are no objections, this issue will be closed on December 17,
2009.
http://www.w3.org/html/wg/tracker/issues/73
Regards,
Maciej